80-Piece Assorted Button Cell Batteries

A watch battery or button cell is a small single cell battery shaped as a squat cylinder typically 5 to 20 mm in diameter and 1 to 6 mm high—like a button on a garment, hence the name. Button cells are used to power small portable electronics devices such as wrist watches, pocket calculators, and hearing aids. Cells have a metal can forming the bottom body, with a circular insulated top cap. The can is the positive and the top the negative terminal. With this assortment of button cell batteries, you’ll have ready access to whichever sized battery powers your electronic device.

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